Fire safety valve and control head for oil wells



June 17 1924. v

4 B. E. HUDGINS FIRESAFETY VALVB AND CONTROL HEAD FOB OIL WELLS Filed Oct. 8, 1923 INVENTOR.

A'TORNEYS.

Patented June 17, 1924.

EYEE SFATES EAQMSB BEN E. HUDGINS, F DALLAS, TEXAS.

FIRE SAFETY VALVE AND CONTROL HEAD FOR OIL WELLS.

Application filed October 8, 1923.

To all whom it may concern Be it known that 1, BEN E. HUDGINS, a citizen of the United States, residing at Dallas, in the county of Dallas and State of Texas, have invented certain new and useful Improvements in Fire Safety Valves and Control Heads for Oil Wells, of which the following is a specification.

This invention relates to devices used in connection with oil wells, the object being to provide a means for cutting off the flow of oil or gas in a comparatively easy and expeditious manner.

Another object and advantage of the invention lies in its simplicity, the device being of but few, although durable parts hence economical of manufacture.

lVith these and other minor objects and features, the invention consists of the novel arrangement of parts depicted in the following drawings forming part of the speci lications and wherein:

Figure 1 is a side elevational View of the device in position on a well casing.

Figure 2 is a top or plan view.

Figure 3 is a vertical sectional view of the central portion of the device, the frame removed, and;

F igure' is a cross-sectional view similar to Figure 3.

Referring more closely to the drawings, 1 denotes pieces of pipe the same size as the well casing, each piece screwed into the central member 3. 2 is a frame enclosing memher 3, which latter is supported by and secured to cross pieces 4.% in the frame 2.

About midway of the block 3 is a space or recess 5 extending from a point A. to the outor surface of the block. This recess is for the purpose of receiving a plate or closure 6 which cuts off the flow of gas or oil. This plate 6 is connected at each end to small links 77 fastened to a cross link 8", see Figure 2. The levers 8 are pivoted to the frame at 8', clearly shown in the drawings.

Secured in any suitable manner to the block 3 and in front of the recess or opening 5 is a member 9 which serves as a receiving slot for the plate closure when in the position as shown in Figures 3 and 4;.

A pipe 10 of relatively small diameter is for the purpose of laterally directing the flow of the oil output after the closure plate is in position.

Serial No. 667,140.

By reference to Figure 3 it will be seen that the lower piece of pipe 1 may be the member 3 and close the opening. The

flow of gas or oil will then be diverted into a small stream out through pipe 10.

It should be understood that the block 3 may be fastened or screwed directly onto a well casing and a pipe length screwed into the upper end of the block; or the device may be constructed with short pieces of pipe threaded on both ends, whereby the casing and shorter pieces of pipe may be connected.

In case the well catches fire, the operation of the device will separate the flame and oil or gas and permit a restricted flow of oil or gas to pass out through pipe 10.

What is claimed is:

1. In a cut-off device for Wells, a frame. a centrally bored block in the frame; means for securing'the block to a well casing; a closure arranged to slide within said block to open or close a well opening; and means for moving the closure Within the block.

2. A cut-off device for wells comprising a frame arranged to be seated over a well; a centrally bored block secured tothe frame, pipe connections in the block, one of which is adapted to be screwed to a well casing; a recess in the block, a closure means adapted to be slid across the well opening; means for operating the closure and means for diverting the flow of oil or gas from the block through a lateral pipe.

3. A cut-off means for wells comprising a frame, a block carried in the frame, a plate arranged to he slid across a recess in the block; means for operating the plate; means for diverting and reducing the flow when the plate is over the well opening and means for supporting the plate outsidethe block when the well is open.

In testimony whereof I have signed my name to this specification.

BEN E. HUDGINS. 

